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(No Model.)

G. O. DRESSEL.

SIGNAL LAMP.

180.390.288. Patented Oct. 2, 1888.

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"Inf-E WITN% mvsmna M. war-m N. PETERS. Phnlmlithagnphur, Walhingmn, D.C.

ilnrrsn STATES PATENT @rrrcs.

GEORGE O. DRESSEL,

OF NEW YORK, N. Y.

SIGNAL-=LAMP.

SPECIFICATION forming part of Letters Patent No. 390,288, slated Uetober2. 1883.

Application filed March 9, 1888. Serial No. 266,655. (No model.)

To all whom, it may concern.-

Be it known that I, GEORGE C. DREssEL, of New York city, New York, haveinvented a new and Improved Signal-Lamp, of which the following is aspecification.

This invention relates to various improvements in signal'lamps to beused by railroad employs.

The invention consists in the-features of improvement more fully pointedout in the claims.

In the accompanying drawings, Figure 1 is a side view of my improvedlamp. Fig. 2 is aback view of part of the same. Fig. 3 is a verticalsection on line a a, Fig. 2. Fig. 4 is a face view of the removableglass, and Fig. 5 a side View of the flange 0f the lens.

The letter a represents the body of a lamp, having, as usual, a whitelens, I), known as bullscye or semaphore, within two of its sides. Eachof these lenses is surrounded by an outwardly-projeeting taperingflange, c. As is well known, railroad signal-lamps must be soconstructed that they can display differently-colored lights, such asgreen, red, 8:0.

I propose to secure the colored glass to the flange in front of thewhite lens. By this construction ready access to the glass is bad, and,moreover, as the flange c is tapering, the size of the colored glass maybe made larger than the size of the white lens. Thus the volume ofcolored light emitted from the lamp is greatly increased.

The colored pane consists of a preferably round piece of glass, (1, Fig.4, surrounded by a frame, c,'having the pin 6' and pin or eye 6diametrically opposite one another.

The flange c of the lamp a has a slot, 0, and a bayonet-slot, 0", alsodiametrically opposite one another. The slot 0 is traversed by a toabout spring, 0 as shown.

In order to affix a colored glass to t-helamp, the pin 6 is introducedinto slot 0, and the shank ofeye e is introduced into bayonet-slot c,the spring a preventing rattling. Thus it will be seen that theintroduction of the glass (Z can be rapidly effected, while its removalis of course just as simple.

To provide a storage-chamber for the colored lights not in use, the rearside of the lamp a is made with double walls. Between these walls thereis formed a pocket provi mlwiw the doorf, as shown.

In order to secure the lamp to a supporting post or bracket, it isencircled at its neck h, above foot 9, by a pair of jaws, o7,terminating in the heads 2'.

That I claim is 1. The combination of lamp a, liiaving lens I), andoutwardly-projecting slotted flange 0, with the glass d, having frame 6,and adapted to be inserted in the flange of the lens-frame immediatelyin front of the lens, the frame 6 being provided with pins adapted to bere ceived by said slotted flange, substantially as specified.

2. The combination of lamp at, having lens I) and outwardly-projectingslotted flange 0, with the glass (1, having frame 6, and adapted to beinserted in the flange of the lens-frame immediately in front of thelens, the frame 6 being provided with the pin 0' and eye 0, and with thespring 0, substantially as specified.

G-EO. O. DRESSED Witnesses:

F. v. BRIESEN, HENRY E. Ronona.

